0-2 94MS20 Rev. B4
5 General
Path of Power to the PC Board .................................................... 5-1
Interlock System ..........................................................................5-1
Lamp Voltage ..............................................................................5-2
Lamp Power Path......................................................................... 5-2
Trigger Board .............................................................................. 5-3
Capacitors and Level Switching .................................................. 5-4
AL 83 Capacitor Assembly .........................................................5-4
AL 84 Capacitor Assembly .........................................................5-5
AL 84-480 Capacitor Assembly .................................................. 5-5
AL 85 Capacitor Assembly .........................................................5-6
AL 56 Capacitor Assembly .........................................................5-6
AL 56-480 Capacitor Assembly .................................................. 5-7
AL 54, AL 55 Capacitor Assembly ............................................. 5-7
AL 54-480, AL 55-480 Capacitor Assembly .............................. 5-8
AL 53, AL 50 Capacitor Assembly ............................................. 5-8
Old Style AL 53, AL 50 Capacitor Assembly.............................5-9
AL 35 Capacitor Assembly .........................................................5-9
AL 25, AL 25-2 Capacitor Assembly........................................ 5-10
AL 23 Capacitor Assembly .......................................................5-10
AL 20, AL 19 Capacitor Assembly ........................................... 5-11
AL 15 Capacitor Assembly .......................................................5-11
Opening the Lamp Head............................................................ 5-12
Shutter........................................................................................ 5-12
Shutter Switch ........................................................................... 5-13
Shutter Brake ............................................................................. 5-13
Shutter Motor............................................................................. 5-14
Installing the Motor ...................................................................5-14
Shutter Removal ........................................................................ 5-14
LT1 Shutter Assembly Drawing................................................ 5-16
LT8 Shutter Assembly Drawing................................................ 5-18
Idle Setting................................................................................. 5-19
Lamp Head Blowers .................................................................. 5-20
Blown Fuse on PC Board .......................................................... 5-20
Lamp Head Signals.................................................................... 5-21
Light Function States................................................................. 5-23
Printed Circuit Board Layout .................................................... 5-24
Signal Description ..................................................................... 5-25
Circuit Diagram (64MV407 60Hz) ..........................................5-27
Old Style (64MV210A) Control Board Layout......................... 5-28
Signal Description (64MV210A) ..............................................5-29
6 Check List for Troubleshooting and Service
Check List for Printing Light Troubleshooting and Service .......6-1
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